html, body {
    width: 100%;
    height: 100%;
    padding: 0px;
    margin: 0px;
  }
  .pannel {
    background: inherit;
    background-color: rgba(0, 0, 0, 0.4);
    box-sizing: border-box;
    border-width: 4px;
    .pannel-title {
      font-family: '微软雅黑', sans-serif;
      font-weight: 400;
      font-style: normal;
      text-align: left;
      line-height: 20px;
      padding: 5px 5px 5px
    }
    .pannel-sub-title {
      font-size: 14px;
      padding: 5px 5px 5px;
      color: rgba(255, 255, 255, 0.45);
      margin-top: -8px;
    }
    
  }